Don’t know how it works at SBIcap, the blog explains about when trading at Zerodha.

1. If you want to enter at 98 when market is at 100, you just need to use limit buying order at 98. If you want to buy at 102 when market is at 100 ,that is when you need a SL to enter. When you place a SL order with a limit price there is always a risk of order not getting executed if the price moves suddenly above your limit price. So keep the limit price as far away from the trigger as possible to get guaranteed execution.

2. Correct. If you want to get guaranteed execution keep trigger at 96 and limit at 90 or something like that.

3. Yep, you can manually trail by changing your trigger price.

4. If you want to sell at a price above the market price, just use selling limit order at 102 and you can modify this limit as and when.

For Short,

1. Place a limit selling at 102

2. Buying SL at 103.5 with trigger at 107 or any price much higher than 103.5.